A worker was killed and three others were hurt when several trusses toppled on a residential construction project in Sandy, Ore., on Friday, Sept. 6, 2013. (Clackamas County Sheriff's Office)

SANDY, Ore. (KOIN) — A worker who was killed and three others who were hurt when several trusses toppled on a residential construction project in Sandy Friday have been identified.

Thirty-three-year-old Dewayne Douglas Smith died after what was determined to be an accident, the Clackamas County Sheriff’s Office reported Monday. The three injured men were identified as 41-year-old Roger Cauich-Cante and Idel UcChable, both of Estacada, and 18-year-old Joseph Hall of Hood River.

At about 2:50 p.m. Friday, the crew was installing trusses on a project at 45440 SE Jadrny Rd. when the trusses collapsed and killed Smith. Hall was airlifted to Oregon Health and Science University with serious injuries. An OHSU spokesperson confirmed that he was released from the hospital Saturday. Cante and UcChable were treated at nearby hospitals for minor injuries. Cante remained under evaluation at Legacy Emanuel Medical Center as of Monday. The nature of his injuries were not confirmed.

The men were working for Stalcup Roofing. The trusses were delivered by ProBuild.

The Occupational Health and Safety Administration and the sheriff’s office were investigating.